1,483 prompts matching "IGCSE practice: Extrapolation beyond the data, and why it is risky"
Word problem: Calculating an expected frequency
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Real-life question: Converting a number from base two back
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Real-life question: An indicial equation whose solution is negative
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Teach me again: Checking a logarithmic power calculation by estimation
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Find my error: Simplifying a ratio whose parts are given in different units
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Find my error: Converting a percentage to a fraction
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Teach me again: Converting naira into a foreign currency at a given rate
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Teach me again: Adding algebraic fractions whose denominators share a factor
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Find my error: Substituting given numerical values
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Real-life question: Manipulating directed (positive
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Find my error: Shading a region of a two-set Venn diagram
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Find my error: Substituting given values into a formula
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Real-life question: Squaring both sides safely when rearranging a formula
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Teach me again: Predicting a value from a direct proportion constant
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Teach me again: Forming a quadratic whose roots are given as fractions
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Real-life question: Forming a quadratic equation
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Real-life question: Proving a quadrilateral is a parallelogram
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Find my error: Comparing two categories on a bar chart
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Extra quiz: Combining a trigonometric ratio with Pythagoras'
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Find my error: Working backwards from a sector area to its angle
Act as my SS1 Mathematics tutor. Set me a question on working backwards from a sector area